Crystalline aluminosilicate zeolites, a process for their preparation and their use
CA 1195676 A · Owner: Hoechst Aktiengesellschaft · Inventors: Leupold, Ernst I.; Litterer, Heinz; Wunder, Friedrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to crystalline aluminosilicate zeolites, a process for their preparation and their use. To prepare these compounds, a mixture of silicon compounds, aluminum compounds, sodium compounds potassium, compounds, ammonium compounds and water in specified proportions is prepared, and this mixture is heated in a sealed vessel. The zeolites are used as catalysts in the preparation of C2-C4-olefins from methanol.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted October 22, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2002.
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Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.